Until recently I could mount my Nikon D50 as a USB mass storage device without
any problems, but recently this has broken and I can no longer mount.
I haven't changed my kernel config at all, it just stopped working after a
regular eix-sync && emerge -uDN world
Reproducible: Always
Steps to Reproduce:
1. Buy a Nikon D50 ;-)
2. Format a memory card in the camera
3. Take some pictures
4. Plug in to computer
5. Turn camera on
6. mount the device reported by dmesg | tail (e.g. mount -t vfat /dev/sdb1
/mnt/nikon)
Actual Results:
# dmesg | tail -n70
usb 1-1: USB disconnect, address 6
usb 1-1: new high speed USB device using ehci_hcd and address 7
usb 1-1: configuration #1 chosen from 1 choice
scsi2 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 7
usb-storage: waiting for device to settle before scanning
scsi 2:0:0:0: Direct-Access NIKON D50 1.00 PQ: 0 ANSI: 2
SCSI device sdb: 4022273 512-byte hdwr sectors (2059 MB)
sdb: Write Protect is off
sdb: Mode Sense: 0f 00 00 00
sdb: assuming drive cache: write through
SCSI device sdb: 4022273 512-byte hdwr sectors (2059 MB)
sdb: Write Protect is off
sdb: Mode Sense: 0f 00 00 00
sdb: assuming drive cache: write through
sdb: sdb1
sd 2:0:0:0: Attached scsi removable disk sdb
sd 2:0:0:0: Attached scsi generic sg1 type 0
usb-storage: device scan complete
end_request: I/O error, dev sdb, sector 4022272
printk: 277 messages suppressed.
Buffer I/O error on device sdb, logical block 4022272
end_request: I/O error, dev sdb, sector 4022272
Buffer I/O error on device sdb, logical block 4022272
end_request: I/O error, dev sdb, sector 4022272
Buffer I/O error on device sdb, logical block 4022272
end_request: I/O error, dev sdb, sector 4022272
Buffer I/O error on device sdb, logical block 4022272
end_request: I/O error, dev sdb, sector 4022272
Buffer I/O error on device sdb, logical block 4022272
end_request: I/O error, dev sdb, sector 4022272
Buffer I/O error on device sdb, logical block 4022272
end_request: I/O error, dev sdb, sector 4022272
Buffer I/O error on device sdb, logical block 4022272
end_request: I/O error, dev sdb, sector 40
Buffer I/O error on device sdb, logical block 40
Buffer I/O error on device sdb, logical block 41
Buffer I/O error on device sdb, logical block 42
end_request: I/O error, dev sdb, sector 40
end_request: I/O error, dev sdb, sector 40
end_request: I/O error, dev sdb, sector 40
end_request: I/O error, dev sdb, sector 40
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
end_request: I/O error, dev sdb, sector 243
Expected Results:
Should mount device.
This seems similar to a problem reported with the D100 (see
http://bugs.gentoo.org/show_bug.cgi?id=185517), and has been mentioned on the
linux-kernel dev mailing list (see http://lkml.org/lkml/2007/7/3/297)
Some useful system information...
# uname -a
Linux fisher 2.6.20-gentoo-r6 #10 SMP Fri Jul 13 13:40:56 BST 2007 i686 AMD
Athlon(tm) XP 2600+ AuthenticAMD GNU/Linux
# lsusb
Bus 004 Device 001: ID 0000:0000
Bus 004 Device 002: ID 10df:0100 In-Win Development, Inc.
Bus 003 Device 003: ID 045e:00db Microsoft Corp.
Bus 003 Device 002: ID 046d:c016 Logitech, Inc. M-UV69a Optical Wheel Mouse
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 007: ID 04b0:0409 Nikon Corp.
Bus 001 Device 001: ID 0000:0000
Will post emerge --info later if required (currently at work and can't access
the box).
